{"product_id":"orion-optics-uk-tube-dew-heater-odk20tr-carbon-fibre","title":"Orion Optics UK Carbon Dew Heater for 20″ ODK","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCustom-fit for Orion Optics UK 20\" ODK Telescopes\u003c\/li\u003e\n\u003cli\u003ePrevents dew formation on primary mirror and corrector optics\u003c\/li\u003e\n\u003cli\u003eLightweight and rigid carbon fiber construction\u003c\/li\u003e\n\u003cli\u003eEnsures maximum image contrast during long imaging sessions\u003c\/li\u003e\n\u003cli\u003eMatches the high-end finish of OOUK truss-tube telescopes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eOrion Optics UK Carbon Dew Heater for 20″ ODK\u003c\/h2\u003e\n      \u003cp\u003eThe Orion Optics UK Carbon Dew Heater is the essential accessory for maintaining the optical performance of your 20-inch ODK20Tr telescope. This custom-fit heater band prevents dew from forming on your optics, ensuring your expensive, hand-figured 20″ instrument delivers maximum contrast all night long.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003ePreserve Your 20\" ODK's Contrast with Carbon Fiber Dew Control\u003c\/h3\u003e\n      \u003cp\u003eA 20-inch Optimized Dall-Kirkham telescope gathers incredible light, but its large, exposed optical surfaces are highly susceptible to dew. As the optics cool below the ambient dew point, moisture condenses, scattering light and devastating image contrast. This heater gently warms the telescope's tube assembly, keeping the optical surfaces just above the dew point without introducing tube currents.\u003c\/p\u003e\n      \u003cp\u003eConstructed from lightweight, rigid carbon fiber, this heater is designed to integrate seamlessly with the truss structure of your ODK20Tr. It provides a thermally stable and physically robust solution that matches the premium build of your telescope, protecting your investment and ensuring your all-night imaging sessions are not cut short by changing humidity.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a Carbon Dew Heater for my Orion Optics UK 20\" ODK?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe large, fast optics of a 20\" ODK are highly efficient at radiating heat and cooling below the ambient temperature, making them a prime surface for dew formation. The \u003cstrong\u003eOrion Optics UK Carbon Dew Heater\u003c\/strong\u003e is critical for preventing this moisture buildup, which can completely ruin the contrast of your images and observations of objects like the Orion Nebula (M42) or faint galaxies in the Virgo Cluster.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the carbon fiber construction of the ODK20Tr dew heater benefit my setup?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eCarbon fiber offers two main advantages for the ODK20Tr dew heater:\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eLightweight Strength:\u003c\/strong\u003e It adds minimal weight to the end of the optical tube, which is critical for maintaining the balance of a large 20\" instrument.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAesthetic Match:\u003c\/strong\u003e The material and finish are designed to match the high-end construction of the Orion Optics UK truss-tube telescopes, ensuring a seamless, professional appearance.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Carbon Dew Heater for 20\" ODK affect the telescope's optical performance?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, when used correctly with a dew controller. The heater is designed to apply a minimal, gentle heat—just enough to keep the optics a degree or two above the dew point. This prevents dew without creating the kind of significant heat that would cause internal tube currents or distort the optical figure, preserving the sharp, high-contrast views your 20\" ODK is built for.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhere on the 20\" ODK telescope is this Carbon Dew Heater installed?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis dew heater is designed as a band that wraps around the main tube or truss assembly near the front of the telescope. Its purpose is to warm the structure holding the primary mirror and any forward optical elements, preventing them from cooling to the dew point.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the ODK20Tr dew heater with a different 20-inch telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis heater is custom-designed for the specific diameter and construction of the Orion Optics UK 20\" ODK (ODK20Tr) telescope. While it may physically fit other 20-inch telescopes, a perfect fit and optimal thermal contact are only guaranteed on the intended model.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of dew controller do I need for the Carbon Dew Heater for 20\"?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis heater requires a separate 12V DC dew controller to function. You will need a controller capable of providing sufficient power for a large 20\" heater band. While many controllers use standard RCA-style power plugs, you should verify the connector type and power requirements to ensure compatibility with your chosen system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eOrion Optics UK 20\" ODK Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCarbon Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eActive Dew Prevention\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eExternal 12V DC Dew Controller (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eCarbon Dew Heater for 20″ ODK\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/orion-optics-uk-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eOrion Optics UK 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion Optics UK","offers":[{"title":"Default Title","offer_id":52942370439453,"sku":"OOUK-TUBE-DEW-HEATER-ODK20TR-CARBON","price":1545.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/OrionOpticsUK-Carbon-Dew-Heater-for-18-1_51973800-68b1-45fd-9df1-0fecdf24e273.jpg?v=1789607064","url":"https:\/\/davidastro.com\/en-us\/products\/orion-optics-uk-tube-dew-heater-odk20tr-carbon-fibre","provider":"David Astro","version":"1.0","type":"link"}